W32/Bagle.J

 Virus Information - W32/Bagle.J:

W32/Bagle.J is a mass mailing worm. The worm will infect Windows systems. This worm spread through email and shared drives on network.

The from address of the infected mail will be either of the following;

support@<domain name>.
staff@<domain name>.
noreply@<domain name>.
management@<domain name>.
administration@<domain name>.

The <domain name > will be same as the domain present in the email address, to which the infected mail being sent.

The subject of the infected email will be any one of the following;

E-mail account security warning.
Notify about using the e-mail account.
Warning about your e-mail account.
Important notify about your e-mail account.
Email account utilization warning.
Notify about your e-mail account utilization.
E-mail account disabling warning.

The body of the infected email will be any one the following;

"Dear user of "<domain name>" mailing system,"
"Dear user of <domain name>,"
"Dear user of <domain name> gateway e-mail server,"
"Dear user, the management of <domain name> mailing system wants to let you know that,"
"Hello user of <domain name> e-mail server,"
"Dear user of e-mail server "<domain name>"

along with any one of the following;

"Your e-mail account will be disabled because of improper using in next three days, if you are still wishing to use it, please, resign your account information."

"Your e-mail account has been temporary disabled because of unauthorized access."

"Our main mailing server will be temporary unavaible for next two days, to continue receiving mail in these days you have to configure our free auto-forwarding service."

"We warn you about some attacks on your e-mail account. Your computer may contain viruses, in order to keep your computer and e-mail account safe, please, follow the instructions."

"Some of our clients complained about the spam (negative e-mail content) outgoing from your e-mail account. Probably, you have been infected by a proxy-relay trojan server. In order to keep your computer safe, follow the instructions."

"Our antivirus software has detected a large ammount of viruses outgoing from your email account, you may use our free anti-virus tool to clean up your computer software."

Along with any one of the following;

"For further details see the attach."
"Please, read the attach for further details."
"Pay attention on attached file."
"For more information see the attached file."
"Further details can be obtained from attached file."
"Advanced details can be found in attached file."
"For details see the attach."
"For details see the attached file."

Along with any one of the following; (only, If the attachment consist a .zip extension)

"For security reasons attached file is password protected. The password is "
"<random characters>".
"For security purposes the attached file is password protected. Password is
"<random characters>".
"Attached file protected with the password for security reasons. Password is
"<random characters>."
"In order to read the attach you have to use the following password:
<random characters>."

Along with any one of the following;

"Sincerely,"
"Best wishes,"
"Have a good day,"
"Cheers,"
"Kind regards,"
"The Management,"

Along with;

"The <domain name> team, http://www.<domain name>"

It carries any one of the following infected attachment;

TextFile
TextDocument
Readme
MoreInfo
Message
Information
Info
Document
Attach

The extension of the attachment will be any one of the following;

.pif, .zip, .exe

Upon execution of the attachment, the worm copies itself as irun4.exe and irun4.exeopen in the Windows System folder. It also checks for a word 'shar' in the available shared folders in both local and network, if found the worm copies itself to these folders using the following filenames;

XXX hardcore images.exe
Windows Sourcecode update.doc.exe
Windown Longhorn Beta Leak.exe
WinAmp 6 New!.exe
WinAmp 5 Pro Keygen Crack Update.exe
Serials.txt.exe
Porno, sex, oral, anal cool, awesome!!.exe
Porno pics arhive, xxx.exe
Porno Screensaver.scr Opera 8 New!.exe
Microsoft Windows XP, WinXP Crack, working Keygen.exe
Microsoft Office XP working Crack, Keygen.exe
Microsoft Office 2003 Crack, Working!.exe
Matrix 3 Revolution English Subtitles.exe
Ahead Nero 7.exe
Adobe Photoshop 9 full.exe
ACDSee 9.exe

It alters the windows registry at the following location to load itself during next startup;

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

It also attempts to terminate the following processes belonging to security software:

ATUPDATER.EXE
AUPDATE.EXE
AUTODOWN.EXE
AUTOTRACE.EXE
AUTOUPDATE.EXE
AVLTMAIN.EXE
AVPUPD.EXE
AVWUPD32.EXE
AVXQUAR.EXE
CFIAUDIT.EXE
DRWEBUPW.EXE
ICSSUPPNT.EXE
ICSUPP95.EXE
LUALL.EXE
MCUPDATE.EXE
NUPGRADE.EXE
OUTPOST.EXE
UPDATE.EXE

To propagate itself, the worm scans the following extensions and collects the available email addresses from the infected system;

.cfg, .asp, .php, .txt, .htm, .dbx, .mdx, .eml, .nch, .xml, .tbb, .uin, .cgi .mmf, .ods, .pl, .adb, .sht, .wab, .msg

The worm uses its own SMTP engine to mail itself to these email addresses.

The worm terminates itself after April 25th, 2004.